极化控制的编码元面,具有相位取消和扩散,用于增强雷达横截面减小.
Muhammad Ubaid Ullah1, Tarik Abdul Latef2,3, Mohamadariff Othman1,4
1Department of Electrical Engineering, Faculty of Engineering, Universiti Malaya (UM), 50603, Kuala Lumpur, Malaysia.
Scientific reports
|November 3, 2025
概括
这项研究引入了一种用于宽带雷达截面 (RCS) 减小的新型超表面,实现了显著的信号散射和抑制. 该设计集成了极化转换和相位取消,用于增强电磁波操纵和隐形应用.
科学领域:
- 电磁学和元材料的使用
- 应用物理 应用物理
- 雷达技术 雷达技术的使用
背景情况:
- 超表面为波浪操纵提供可调节的电磁性质.
- 降低雷达截面 (RCS) 对隐形应用至关重要.
- 宽带RCS减少需要复杂的超表面设计.
研究的目的:
- 开发和验证一种用于宽带RCS减少的新型超表面.
- 整合偏振转换,扩散和相位取消机制.
- 为了研究金属表面在正常和斜率下的表现.
主要方法:
- 一个旋转对称的元表面设计,具有优化的单元细胞大小.
- 使用Pancharatnam-Berry阶段的1位和2位相控集成.
- 基因算法 (GA) 对单元细胞排列的优化.
- 电磁模拟和实验验证.
主要成果:
- 一位元表面在43.81%的相对带宽 (12.3-19.2 GHz) 上实现了~10 dB的RCS降低.
- 2位元表面在46.65%的相对带宽 (12-19.3 GHz) 上实现了~20dB的RCS降低,在58.60% (11.1-20.3 GHz) 上实现了~10dB的RCS降低.
- 在高达15° (1位) 和30° (2位) 的斜发生角下保持了显著的RCS降低.
结论:
- 拟议的超表面有效地减少了RCS在广泛的频率范围内.
- 该设计在不同的冲击角度下表现出强大的性能.
- 这项技术有可能用于先进的隐形和电磁波控制.
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